Heavenly Apple Crisp Shortbread Bars

Ingredients

• 1/2 cup butter, room temperature
• 1/4 cup granulated sugar
• 1 teaspoon pure vanilla extract
• 1/4 teaspoon salt
• 1 cup all-purpose flour
• 3 large apples
• 2 tablespoons all-purpose flour
• 2 tablespoons granulated sugar
• 1 teaspoon ground cinnamon
• 1/4 teaspoon ground nutmeg
• 1 1/2 cup brown sugar
• 1/2 cup butter, melted